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Bad Calculated Bond Lengths

List of molecules with calculated bond lengths that differ by more than 0.050 Å from experimental bond lengths.

Calculated at B3LYP/6-31G**

17 02 03 13 22
Species Name Bond type Bond Length (Å)
Experimental Calculated Difference
C3H3NO Isoxazole rCH 1.075 1.424 0.349
C2H4O3 trioxolane124 rCN 1.303 2.199 0.896
C4H10O Methyl propyl ether rCC 1.530 1.096 -0.434
C4H10O Methyl propyl ether rCH 1.099 1.410 0.311
CaO Calcium monoxide rOCa 1.822 2.032 0.210
C4H6 1-Methylcyclopropene rCH 1.085 4.220 3.135
C4H6 1-Methylcyclopropene rCH 1.087 3.428 2.341
C4H6 1-Methylcyclopropene rCC 1.476 2.265 0.789
C4H6 1-Methylcyclopropene rCH 1.087 1.825 0.738
C4H6 1-Methylcyclopropene rCH 1.098 1.779 0.681
C4H6 1-Methylcyclopropene rCH 1.098 1.760 0.662
C4H6 1-Methylcyclopropene rCH 1.070 1.511 0.441
C4H6 1-Methylcyclopropene rCC 1.515 1.095 -0.420
C4H6 1-Methylcyclopropene rCC 1.300 1.508 0.208
CH3SO2NH2 methanesulfonamide rCN 1.207 1.698 0.491
CaBr Calcium monobromide rCaBr 2.594 2.699 0.106
GaP Gallium monophosphide rPGa 2.450 2.243 -0.207
Ne2 Neon diatomic rNeNe 3.100 2.478 -0.622
Cu2 Copper diatomic rCuCu 2.220 2.023 -0.196
ClOOCl Dichlorine dioxide rOCl 1.704 1.809 0.105
NaO sodium monoxide rONa 2.052 1.922 -0.130
Ar2 Argon diatomic rArAr 3.758 4.214 0.456
Ar2+ Argon diatomic cation rArAr 2.320 2.631 0.311
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 2.295 0.255
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.240 2.093 -0.147
HSSSH trisulfane rHS 1.344 2.099 0.756
CaH Calcium monohydride rCaH 2.003 2.121 0.119
CaCl calcium monochloride rClCa 2.437 2.568 0.131
CaS Calcium sulfide rSCa 2.318 2.489 0.171
AlP Aluminum monophosphide rAlP 2.400 2.236 -0.164
AlP Aluminum monophosphide rAlP 2.220 2.093 -0.127
Al2 Aluminum diatomic rAlAl 2.701 2.514 -0.187
CaC Calcium monocarbide rCCa 2.302 2.429 0.127
33 molecules.